Whire-whistle



March 14, 1933.

J. H. BRADY WHIRL WHISTLE Filed Jan. 16, 1932 Z/WES l l W INVENToR vPatented Mar. 14, 1933 UNITE-n ienne. nenni; on nenisvinen nnnineii WEIRLWEISTLE Applieation 1ed'Ianuary.16,`193,2. Serial No.. 5.8,Q3.3..

My invention. relates. te endible renewing eey-.s .fer the. use enel enteiteining. f.. elnldren and others.; enel, in. its. simple. f011n, it een: siste of' @we syininenieel, eeneeved dises 5 whose edges eneesteneel together in ein tient .seein .te ei'ni. e hellen, glebnler shell w ose' eqnaterinl. elieineten is enproxiemtely three en fein' tiniesits, axial. fllerneter enel whose Central, interior portion is oecupied 19 with a Cubical block .of wood or other light material securely fastened therein and adapted, when the hollow globular shell 1s whirling rapidly-,on its axis, to forge the interier .ein .flern the central region 0f the l! Shell Qugwspal toward the equatorial rim of the body Where. the interior. air is connected with the enter surrounding ennesnhere through. two. pai-'rs of perforations which .he-ye been niecle in' ene 0f. seid @Oneeyed 2 dises neer ehe periphery thfnfeef, eeehneii being edieeeni .end dernetrieellynposiie the other nein, ell perferetiens being equi.- distant frei-n the .Center of seid eenee'yefl dises; seid hollow, globular shell being g5 .adapted .te be .feinte/s1. en its .finis by Ineens ef ewe suing-loops ihneeelecl through the centrally disposed Wood blols alt-1d Coming ent e. shone. distance epell 011. eline? .Side 0f ehe. eenteys iliereei r The general ebieet ef inyentien'is. .the .development end. nreelneiien .0f ven entree tive. enel harmless spinning end .whistling eey fer the use enel entertainment. children and Otherswen interesting tey .ef

sneh e nature ns. te be eesly Operated .er

rotated its exis. first .in one .flireetienenel enen .in ine .einen by .Ineens A.el in@ .steingleens threaded. ltlnengli the. .eentrelly-disposed Weed hleeks- An-fl Seine Special. eh-

40 jects of ymy invention Aeine: First, to devise .ineens for .fereing elle enelesed nir inr the shell .li-rein the .Central regiens .te the nene -o .tl-ie periphery ef, the shell when` it is fr0.- tated rapidly on itsaxis, so that the pres- .sure oi the inter-ier ein in .the nenipliernl rregions tney lee nereeserl for the' pnnnese @i nenes/.ing the yelnine enel eilen.' .eline whistling sennel tlirens'li elle eine .penisl 0f .aeljneent ydise inerfeletiens Where. the interv- .50 .ehsnge .different Pfessnnes between the whistle.. illustneted .inih'e 'eeeeinpfeny ng inside end the, Qntsiyle, ein #elses piene; neef. enel, te design. e nietliml'effetteeliins .the string-.leem te the hellen' shell in 'snelnj @het .the strings. ere. nely ent 'in llienennel. en: erzielen. ef, the yelnnl-nylifisele` 'ley elle@ edges lef ineielfeleelsa third, le .fleyiee e 0f Cerrelelive nerfeieliens. 'adept-.ed in. 1 I end relative.l posit-ions in resp'e'ee te .ene

al.Heiner and. te .the iiflns of .ihe'liellem elle?? ulersliells, Se that, the-.shell when inlined by the elteinele eniseing'end nn wisiinfflelf the attached seringneeps, @einen nre' aller.-

nately released end pulled',` will giye forth .a lWhistling,sound volume 'time eorlespending tothe size ef the shell.

perferetefl enel 'the 'ein pressure. in elle pe.-

tiens ereenfl th, .te prpYi'd'e n ,el Ineens gf producing @weer lrnere .dlleient toneswltli Whistles. .All nf these eliieees. erenlteneel. .ijn Present inventiens. elllllllyneyv Whiil .ternel enniliery-sliell @dented Q11 `le?lelie!!f.el .the Shell, :te eleve y.infill .e whistling sound.

llisnne Il is e. side eleyeiienfef nil-y vilill- *9- whislle showing .the '..eenenyellls'e lie-ying Pens efeelieeent nei-,fenetiens ellepied l0 ineke the whistling sennfls .es the whirliwlhisne'lis meen. The, 'een .en-ele inei- Gelee .the yne's'inieilf mienne-l- .enxilieey epperenilly enly Weill'- all@ i region Lef -tlie shell., ln'llig- .lis else slinyyn '12p the .edge .and .the vrelative -positienni rotated in either direction, to force the internal air to the regions of the peripheries A of the shells. A

'l Figure III isy a sectional view through the 1 axis of lone of the whirl-whistles with its wooden block securely` fastened inthe ceni tral region of the shell and having long hubs extending out through the sides of the lshell on either side Vand adapted to engage the string-loops and to hold .the globularfshellV more steadily in its equatorial plane while operatingv Vwithl alternate rotations.`

' vFigurenIV isan edgeview in Vaxial sectionk of the type of my whirl-whistles as ,.20 shown in Fig. I; but in Athis Fig. IV are shown twovof my 'whirl-whistles.threaded `together by means of the operative stringloops so they can'be'operated in'multiple formation. In this Fig. IVis, also, shown modified formsof my string-loops provided y with smooth handles fitted into thel outer ends of the loops and Aadapted to prevent the string in' operation from chang the fingers of young-children. i V' This invention has been designed'and developed in its various types, forms and sizes for the use and'liarinless entertainment vof vchildren ;V and with this general purpose and the special objects aforesaid in View, I will now proceed to describe my invention in der- 'tail,' pointingout specically the newvand .useful features and explaining the'jvarious uses and the operations of the'individual parts and combinations thereof throughout my invention', as illustrated in the drawing hereinabove delineated, in which similar letters and charactersfrefer toisimilar Vparts throughout the severalviews. i V` l Referring to said drawing, the numeral 1 indicates ythe concaved ydisc of my whirlwhistle, in'which the whistling perforations arey made and/2 indicates theopposite side of my whirl-whistle; while 4, 4, point out the strings ofthe two string-loops used in rotating the whistle;frand 4a, 4a, are the knots in the string-loops. yThe numerals 5, 5, indicate the cubical wood block fastened in the central partA of thehollow shell vby means of the nails '6, 6; while 7, 7 point out Vthe long hubs onone type of my whirlwhistle, centrally disposed and'standing out Von Veither side through the concaved disc to formrattachments vfor the operative stringloops, whichare threaded through the Ytrans'- Verse perforations 7a, 7m, therein.

` InV theFi'g's: I and II'I have shown in detail the constructionand arrangementV of vvthefparts of one of myY double-toned whirl- Whistles `inwhich there .is one main com- ;partmentvS 'embracing another smaller interior compartment 9'forn1'ed by means of .the interior air in the `region of the whistle- I, 5

In theexperimental development of my whirl-whistle, I have found that the comparative tones produced bythe various types yof whirlfwhistles, 'depend principally upon the variousv sizes and air-volume capacities -of thefvarious Awhistles and `also uponthe difference in pressure between the interior air of the whistle 'and the surrounding atmos )here #that is a com Jarativel small Y.

whistle produces a comparatively sharp tone while a larger whirlwhistle produces a tone of lower pitch. But a centrifugal fan,` as may be seen in the radiating angles of the cubical block outlined in Fig. II,'greatlyl ncrea'ses the pressurev of" the interior airwin the regions of theV perepheries ofmywhirlg whistle, when the whistle is rotated rapidly on its axis; and this increased pressuref'of openings increases both the volume andthe pitch of the wl'nsthng tones inthe normal operation of the Whirl-whistle.

Thus, it may vrbe readily understood how ferent tones. y,For example, inV the case of Figs. I and II, the large compartmentS lwith its comparatively larg@4 Whistle openings la, la, produces a tone of greater volvume and lower pitch" than the small interior compartment 9 with Aits smaller whistle openings 9c, 90. f Moreover, in th'e'development-'of mylinvention, I'have discovered a lmethod of conoperation of common string-loops', as shown v in Fig. IVwhere` the two` string-loops 4, 4,` threaded through 4the perforationsa, 5a, in the centrally disposed blocks 5, 5, of the two whirl-whistles, are shown at about the middle lof the twisting or the untwistmg strokef- And assh'own yin Fig. IV, I have" designedfconvenient loopv handles 46,' 4b, `willich at the option of the operator may Vbe set into the outer ends.ofthestringfl'oops N ow to understand thoroughly-the operai my double and tripletoned whirl-whistles `in i normal operation produce'two'or three diftion and eificiency'of my'new whirl-whistle,

we should put it to vu'se'in the followingway:

When we start to operate 'my whirlwhistle, as shown in Fig. I, with its operative string-loops '4, 4,- drawn out i straight, We"

should place the thumb or two lingers of each hand through the outer ends yof the string-loops; and allowing the whirl-whistle to hang on the slightly-drooping stringloops 4, 4, between our hands, we should then begin twirling the Whirl-Whistle between our hands until both the string-loops become slightly twisted, as shown in Fig. IV. Then, when we pull outwardly on the loops 4, 4, the whirl-whistle begins spinning as the string-loops are untwisting. And when the string-loops are once more out straight, the momentum of the spinning whirl-whistle will go on twisting the strip-loops again to the maximum extent of the strings, as we, accordingly, recede from our outward pull, allowing the string-loops to twist; and as we again pull outwardly on the string-loops, the whirl-whistle will, in response, start spinning swiftly in the opposite direction. And this operation may be continued indefinitely at the will of the operator. And the spinning speed of the whirl-whistle is, also, under the control of the operator. f

Now, it is noticeable that in the construction of my whirl-whistle, lwhether single or multipletoned, the whistle openings are i made in pairs with a narrow lpartition between each pair and that their centers are on arcs described about the centers'of their respective compartments and near the rims thereof, so that in the spinning of the whirlwhistle in either directions, one whistle opening is always trailing in line just behind the other opening, cutting the air in such a manner as to produce a whistling sound of a certain predetermined tone corresponding to the size and air volume and air pressure in the compartment; while the volume of sound depends upon the spinning speed of my whirl-whistle and the interior air pressure. p I

And, now, having thus described the various features of my invention, the detail construction, arrangement and combination of its parts as well as its functions and ways of operation, those features and combinations of my invention that I consider new and useful and representative of interest and eificiency, on which I desire Letters Patent granted to me, I have hereinbelow set forth and specifically described in the following claim In a multi-toned whirl-whistle: a main circular compartment made up of two concaved discs whose concaved faces Vhave been fastened together in an air-tight seam at their rims, forming a hollow, globular shell; two pairs of adjacent whistle-apertures in one of said discs made diametrically opposite each other near the rim of the disc and adapted to produce a whistling sound when the shell is rotated rapidly on its axis; a cubical block securely fastened in the central portion of said shell and bearing tightly against the inner sidesthereof, the angles of, l i

said block beingadapted to act as a fan to force the interior air from the central regions to the periphery zone of the hollow 7-0 shell when the shell is vrotated rapidly on its axis, as in normal operation;'a secondary y compartment-within the main compartment,

having one concave disc whose edges are'fas-v tened inv anair-tight seam to the inner surface of the concaved disc opposite said whistle-apertures of the main compartment shell, the central part of the secondary comv partment disc being cut and adapted to fit tightly about the sides of the central cubicalblock of they main compartment; two pairs of adjacent whistle-openings diametrically' opposite each other made through the contiguous wall of the maincompartme'nt and l leading directly into the secondary compartment near its periphery and adapted to produce a whistling sound of a higher pitchl 7 JAMES HENRYYBRADY.

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